Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?
'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts.
True vapour pressure of a petroleum fraction __________ Reid vapour pressure.
Increase in the specific gravity of petroleum products indicates
Cetane number of alpha methyl naphthalene is assumed to be
Petroleum deposits are detected by the.
Which one is preferred for aircraft engine ?
Feedstock for polymerisation is
__________ base crude oil is also called asphaltic crude.
Which of the following is the most important property for a jet fuel ?
Thermofer catalytic cracking process is a __________ process.
Pressure & temperature maintained in catalytic cracking is about
Pick out the wrong statement.
Products drawn from the top to bottom of the crude oil distillation column has progressively increasing
Good quality kerosene should have
The most suitable solvent for deasphalting vacuum residue is
Which of the following has the highest flash point of all ?
Hydrocracking employs
Which of the following processes is used for the production of petroleum coke ?
Quinoline is a/an __________ compound.
Methyl tertiary butyl ether (MTBE), a high octane (octane no. =gasoline blending component is produced by the simple additive reaction of isobutylene with
LPG when brought to atmospheric pressure & temperature will be a
Pick out the correct statement pertaining to catalytic cracking.
Platforming is a __________ process.
Which parameter is used for the grading of paraffin waxes ?
1 centistoke is equal to __________ Redwood I seconds.
Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate forhours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
Asphalts are
Paraffins are desirable in lubricating oil, as it has got high
The characterisation factor of crude petroleum oil is around
Sour crude means the __________ bearing crude.
Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.
Performance number of a liquid fuel is related to its
Pick out the correct statement.
Which of the following is a naphthene ?
Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.
Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
Highest quality bitumen is produced from the __________ crude oil.
Smoke point of kerosene is the
Cetane number of a diesel fuel is the measure of its
Aniline point of the diesel is a measure of its __________ content.
Reid vapour pressure of gasoline is the measure of its
Naphtha yield in straight run distillation of crude oil may be about __________ percent.
Crude petroleum oil is a __________ fuel.
Molecular weight of crude oil is in the range of
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke ?
The conductivity of crude oil-water mixture depends on the
Which parameter is used for the grading of paraffin waxes ?
Presence of sulphur in gasoline
Which of the following additives improves the cetane number of diesel ?